33144425 has 12 divisors (see below), whose sum is σ = 42425856. Its totient is φ = 25659600.

The previous prime is 33144413. The next prime is 33144481. The reversal of 33144425 is 52444133.

It is not a de Polignac number, because 33144425 - 2¹⁰ = 33143401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33144394 and 33144403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20609 + ... + 22158.

It is an arithmetic number, because the mean of its divisors is an integer number (3535488).

Almost surely, 2^33144425 is an apocalyptic number.

It is an amenable number.

33144425 is a deficient number, since it is larger than the sum of its proper divisors (9281431).

33144425 is a wasteful number, since it uses less digits than its factorization.

33144425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42808 (or 42803 counting only the distinct ones).

The product of its digits is 5760, while the sum is 26.

The square root of 33144425 is about 5757.1195054471. The cubic root of 33144425 is about 321.2206794438.

Adding to 33144425 its reverse (52444133), we get a palindrome (85588558).

The spelling of 33144425 in words is "thirty-three million, one hundred forty-four thousand, four hundred twenty-five".